WebUI not showing data on HomeAssistant addon 2.4.9

[CoopsGitHub]

Trying to restart homeassistant after my SD card was trashed, now using shiny new NVMe ssd on my Pi4.

I've never managed to get the Web UI to work properly.
I have it enabled in the config

And the browser can connect:

Which results in GivTcp addon log activity:

 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 GET /
 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 Returned 304 in 7 ms
 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 GET /css/styles.css
 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 GET /js/libraries/jquery.js
 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 Returned 304 in 7 ms
 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 Returned 304 in 7 ms
 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 GET /js/app.js
 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 Returned 304 in 2 ms
 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 GET /js/enums.js
 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 GET /js/sensors.js
 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 GET /js/helpers.js
 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 Returned 304 in 5 ms
 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 Returned 304 in 4 ms
 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 Returned 304 in 4 ms
 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 GET /js/formatters.js
 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 GET /js/converters.js
 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 Returned 304 in 4 ms
 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 Returned 304 in 4 ms
 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 GET /app.json
 HTTP  1/19/2025 4:47:57 PM 192.168.68.60 Returned 304 in 1 ms

But the data never shows, displays or updates. Unlike the entities elsewhere: